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Method of and apparatus for detecting fuel system leak 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01M-003/32
출원번호 US-0194950 (1994-02-14)
우선권정보 GB-0002958 (1993-02-13)
발명자 / 주소
  • Williams David (Warwickshire GB2) Briscoe Stuart M. (Wolverhampton GB2) Melbourne Keith (Perth AUX)
출원인 / 주소
  • Lucas Industries Public Limited Company (GB2 03)
인용정보 피인용 횟수 : 42  인용 특허 : 0

초록

The existence of an unacceptable vapor leak can be determined by monitoring the pressure within a fuel system of an internal combustion engine. Once the engine is switched off, a period is timed to allow pressure variations due to movement of the fuel to subside to an acceptable level. The fuel syst

대표청구항

A method of detecting an unacceptable vapour leak in a fuel system of a vehicle internal combustion engine, including a fuel tank containing liquid fuel comprising performing a fuel system pressure test while the engine is switched off, said pressure test comprising closing said fuel system and meas

이 특허를 인용한 특허 (42)

  1. Miwa Makoto,JPX ; Isomura Shigenori,JPX ; Nishio Teruo,JPX, Abnormality detecting apparatus for use in fuel-transpiration preventing systems.
  2. Okuma Shigeo,JPX, Apparatus and method for diagnosing leaks of fuel vapor treatment unit.
  3. Remboski Donald J. (Dearborn MI) Plee Steven L. (Brighton MI) Woznick Mark B. (Novi MI) Foley John F. (Novi MI), Apparatus and method of detecting a leak in an evaporative emissions system.
  4. Cook John E.,CAX ; Perry Paul D.,CAX, Calibrated toggle lever of leak detection module pump.
  5. Bruhn,Andreas; Lutz,Josef; Widmann,Ralf, Device and method for testing the seal tightness of a fuel tank system of a motor vehicle.
  6. Dambach Dieter-Andreas,DEX, Device for detecting a fuel supply system leak during an engine overrunning phase.
  7. Otsuka Takayuki (Susono JPX), Device for detecting leakage of fuel vapor.
  8. Wallrafen Werner,DEX, Device for measuring changes in pressure.
  9. Kawamura Katsuhiko,JPX ; Kawano Akihiro,JPX, Diagnosis for evaporative emission control system.
  10. Schwegler Helmut,DEX ; Zimmermann Manfred,DEX, Diagnostic module for testing the tightness of a container.
  11. Elkolaly, Omar, Diagnostic systems and methods for the high pressure side of fuel systems in common fuel rail engines.
  12. Cook John E.,CAX ; Perry Paul D.,CAX, Electric-operated toggle lever of leak detection module pump.
  13. Takashi Isobe JP; Takashi Yamaguchi JP; Satoshi Kiso JP, Evaporated fuel treatment apparatus for internal combustion engine.
  14. Stephen F. Majkowski ; Kenneth M. Simpson, Evaporative emission leak detection method with vapor generation compensation.
  15. Nagano Susumu,JPX ; Oakes Martin, Evaporative fuel leak diagnosing apparatus.
  16. Amano, Noriyasu; Itakura, Hideaki; Kato, Naoya; Kano, Masao, Failure diagnosis method and failure diagnosis device of evaporated fuel treating unit.
  17. Shingo Shigihama JP; Katsuhiko Sakamoto JP; Yuji Ota JP; Tetsushi Hosokai JP, Failure diagnosis system for evaporation control system.
  18. Harris Robert S. ; Bowden Bruce K. ; Foltz Dean C., Fuel cap leakage tester.
  19. Schwager Bryce Andrew ; Curran Patrick Joseph, Fuel sloshing detection.
  20. Corkill William John,GBX, Fuel system leak detection.
  21. Docy, Michael J.; Hart, George R.; Bauman, Robert L., Fuel tank tester.
  22. Amano,Noriyasu; Kato,Naoya; Itakura,Hideaki; Kano,Masao, Fuel vapor leakage inspection apparatus.
  23. Hidano, Koichi; Kitamoto, Masakazu; Yamamoto, Mitsunobu; Kitamura, Hiroshi; Kaneyasu, Yoshikazu, Hermetically sealed fuel tank apparatus.
  24. Miwa, Makoto; Morinaga, Syujiro; Maegawa, Yoshinori; Wakahara, Keiji, Leak check for fuel vapor purge system.
  25. Stretch, Dale Arden, Leak detection system.
  26. Iochi Atsushi,JPX ; Goto Kenichi,JPX, Leak diagnosis system for evaporative emission control system.
  27. Charles A. Detweiler ; Daniel L. DeLand ; Gerrit V. Beneker ; David R. Sosnowski, Low current solenoid valve.
  28. Kenney, Donald P.; Simmons, Walt, Method and apparatus for continuously monitoring interstitial regions in gasoline storage facilities and pipelines.
  29. Kenney, Donald P.; Simmons, Walt, Method and apparatus for continuously monitoring interstitial regions in gasoline storage facilities and pipelines.
  30. Kenney,Donald P.; Simmons,Walt, Method and apparatus for continuously monitoring interstitial regions in gasoline storage facilities and pipelines.
  31. Kenney,Donald P.; Simmons,Walt, Method and apparatus for continuously monitoring interstitial regions in gasoline storage facilities and pipelines.
  32. Garman Benjamin D. ; Albers Jeffrey Maurice ; Merrell Robert James, Method and apparatus for detecting vapor leakage.
  33. Stegmann, Volk r; Fritz, Thorsten; Streib, Martin; Wiltsch, Peter; Hassdenteufel, Armin, Method and device for diagnosing tank leaks using a reference measuring method.
  34. Jan Muller SE; Peter .ANG.lleving SE, Method and device for leakage testing in a tank system.
  35. Blomquist William B. (Clarkston MI) Dawson Gary D. (Rochester MI) Richardson Roland T. (Detroit MI) Tallarek Glen (Grosse Pointe Woods MI), Method of pinched line detection for an evaporative emission control system.
  36. Meskouri, Mohamed S.; Engel, Gary H.; Clar, Baltasar; Wade, Leon T.; Kahlon, Awtar S., Pump assembly and method for leak detection of fluid system.
  37. Dawson, Gary D.; Blomquist, William B.; Booms, Chris J.; Kanafani, Fadi S., Small/gross leak check.
  38. Herzog, Michael; Smith, Gordon Ernest; Sulik, Charles Michael; Pandey, Arun R.; Shishkin, Valeriy Maksimovich; Weedon, Rex Graham; Davis, Mark, System and method for testing fuel tank integrity.
  39. Herzog,Michael; Smith,Gordon Ernest; Sulik,Charles Michael; Pandey,Arun R.; Shishkin,Valeriy Maksimovich; Weedon,Rex Graham; Davis,Mark, System and method for testing fuel tank integrity.
  40. Herzog,Michael; Smith,Gordon Ernest; Sulik,Charles Michael; Pandey,Arun Raj; Shishkin,Valeriy Maksimovich; Weedon,Rex Graham; Davis,Mark A., System and method for testing fuel tank integrity.
  41. Deleon, Marcos J., System and method for verifying fuel cap engagement.
  42. Butler, Josh; Hill, David; Criel, Bjorn, Vehicular liquid containment system and method for verifying integrity of same.
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